Valve for cookers



June 2, 1931. D, CHAPMAN 1,808,017

VALYB FOR QOOKERS Filed March 1, 1930 '2 Shoots-Sheet 1 June 1931- D. CHAPMAN 17 VALVE FOR COOKERS Filed March 1 1930 2 Sheets-Sheet 2 4/40 ;.1540 4/ Ijg/Z IN VEN TOR.

- ATTORNEYS.

line 9-9 of Fig. 8. 'Referring to the l atented dune 2, i231 srnrssrarsnr FRANK-D. JAN, 03 BEELLIN, WIEEGGNQEH VALVE non cameras Application filed Harsh .1, 1989. serial Ho. 432,408.

This invention relates to improvements in valve for cookers.

it is one of the objects of the present invention to provide a continuous cooker having inlet and discharge valves for charging cans into the cooker and discharging the cans therefrom after the cooking operation.

A further object of the invention is to provide a valve for cookers in which means are provided for sealing the valve between the can pockets to prevent the loss of heat during the charging or discharging operation.

A further object of the invention is to provide a valve for cookers in which the sealing means is maintained in position while passing the inlet and outlet openings in a very simple manner. a

A further ob ect of the inventlon 1s to provide a valve for cookers which is of, simple construction, is eflicient in use and is well adapted for the purposes described. I With the above and other ob ects in view the invention consists of the improved valve for cookers and its parts and combinations as set forthin the claims, and all equivalents thereof.

in the accompanying drawings in which the same reference characters indicate the same parts in all of the views:

Fig. l is an end view of a continuouscooker provided with the improved valves;

Fig. 2 is a vertical sectional view on a lar er scale of the valve and a portion of the coo er upon which the valve is mounted;

Fig. 3 is a top view of the parts shown-in Fig. 2; 1

Fig. 4 is an edge view of the valve;

Fig. 5 is a vertical sectional view taken on line 55 of Fig. 2;

Fig. 6 is a sectional detail view on a larger scale ofthe upper portion of the valve;-

Fig. 7 is a sectional detail view taken on line 7-7 of Fig. 6; ,A Fig. 8 is a sectional detail view of one of the sealing members; and 1 Fig. 9 is a sectional detail view taken on drawings, the numeral 10 indicates a horizontally extending cyl ndrical cooker receptacle or drum 10 which is mounted on supports ii and has an inlet opening '12 at its upper portion adjacent one dially and the other circumferentially. Said bars extend in parallel relation to the shaft of the carrier and their circumferential flanges are of less distance apart than the diameter of the cans of food containers 1%, so that said cans cannot pass therebetween. lfhe bars co-act with a spirally'trending guide track member 19 which is positioned within a the drum and surrounds the carrier and is connected to the inner periphery of the drum. The said guiding member is formed of metal of T-shape in cross-section with the stem portion 19' extending radially inwardly to form a continuous end guide for the cans, while the outer cross-section portions 19 form guides for the side edge portions of the her are spaced apart a suficient distance to permit a can to roll on the cross-section portion and between the stems while being moved by the carrier and advanced by the spiral member.

The charging or inlet opening 12 is provided with a rotary valve 20 enclosed in a cylindrical valve casing 21 mounted on the drum. The valve is also of cylindrical form in cross-section and closely fits the casing and is formed with radial opening can pockets 22 for receiving cans of material to be processed. The upper portion of the valve casing is formed with an inlet opening 23 for receiving the cans.

cans. The convolutions of the spiral mem- An inclined trough 24 extends from a point of supply upwardly to the valve casing and over the drum in a horizontal plane to form a su' port for the cans 18 which arefed to the va ve by an endless chain'25. Said chain ex tends in a vertical plane around the drum and is formed with transverse bars 26 which di-* rectly engage the cans to move them upwardly and drop them into the valve ockets. Steam is supplied to the drum throug a pipe- 27 and water by a pipe 28.

To prevent the esca e of steam or heat through the inlet opening and between the valve and the valve casing, the valve is of greater length axially than the width of the inlet opening 23 and is formed with circumferential grooves 29 toreceive split sealing rings 30 which are held yieldingly against the inner eripher of the valve casing on opposite si es of t e opening 23 by coiled springs 31 positioned in pockets 32. Said pockets are circumferentially spaced around the eripheral portion of the valve. Spring ui es 33 are interposed between the ends of t e springs and the rings to hold the sprin in osition and to present a comparative y wi e bearing surface to the sealing or packing i rings. The valve is also provide with elongated sealin stri s 34 which are located in grooves 35 orme between the can pockets 22. Said grooves 35 extend from one circumferential groove 29 to the other and'each sealing strip 34 positioned therein is formed of two like L-shaped parts 37 which overlap each other sidewise and endwise to ermit relative longitudinal movement of t e two parts without permitting the escape of the heating fluid therebetween. The overlap edend portions 38 of the strips 34 engage t e inner peripheral portion 0 the valve casing and the sealing rings 30 so that in all ositions a fluid tight joint is formed. C01 ed springs 39 interposed in pockets between the overlapped end portions 38 of the stri s hold the said portions yieldingly against t e split rings 30, while coiled springs 40 positioned in radial pockets 41 between the sealing strips andthe valve adjacent the overlapped end portions of the strips 34 hold the str'igls yieldingly against the inner peripher of t e casing. Bearin plates 42 interpose between the strips 34 an the coiled springs 40 yieldingly hold both members of each pair of strips a ainst the inner periphery o the casing an seal the joint t erebetween. The valve is rotated by a shaft 43. The adjacent faces of the two portions of each strip 34 are grooved as indicated by the numeral 34' to receive a key pin 37' for holdin the parts in alinement while permitting t eir free endwise movement.

As the discharge opening 13 is provided with a similar valve 44 rotated by a shaft 45, it is unnecessary to re eat the explanation further than to state t at the parts are exactly the same and operate in the same manner. A discharge chute 46 connected to the casing of the discharge valve 44 adjacent the discharge opening 47 thereof permits the cans to roll away as they are discharged from said valve.

'a rotary valve member within the casing having can receivin pockets which re 'ster and the longitudinal y extending angle barsv of the rotary carrier. The said carrier will move the cans through the drum in a'spiral path while being processed and when they reach the drum ischarge opening they wi I drop through said opening into the discharge valve pockets and said valve will deliver .them to the chute for further disposition.

From the fore oin description it will be seen that the -va ve in cookers is very eflicient in operation and is welladapted for the urpose described.

ut I claim as my invention is:

1. A valve for a cooker, comprising a casing for attachment to a cooker drum and hav-' ing an inlet opening and an outlet 0 ning with the o enings w en the valve mem r is rotated, yielding packin rings extending around the valve member tween the and the ends of the valve, and elongatable acking strips positioned tween the poo ets and extending to the rings, said ringsand strips preventing the passage of heat fluid through the valve casing.

2. A valve for a cooker, comprising a cir-' cular casing having an inlet and an outlet opening, a rotary valve member within the casing and having can receiving pockets which register wit the openings when the valve member is rotated, yielding packing rings extending around the valve member between the pockets and the ends of the valve, and two part yieldingly elongatable packing strips positioned between the pockets an extending to the rings, said rings and stri s yieldingly engaging the inner surface of t e casing to prevent the passage of heat fluid throu h the valve casing.

yie dingley aok ckets 3. valve for a cooker, comprising a circular casing having an upper inlet opening and a lower outlet opening in its peri heral portion, a rotary valve member within the casing and having peripheral longitudinally extending can receiving pockets, the rotary valve member also having circumferential rooves between the ends of the pockets and t e ends of the valve and longitudinal grooves between the ockets and the circumerential grooves, spit packing rings positioned in the circumferential grooves and yieldingly bearing against the inner riphery of the casing, and two-part yie dingly elon atable bearing stri s ositioned in the longitudinal grooves an yieldingly bearing agamst the inner periphery ofthe 4. A valve for a cooker, comprising a cir cular casing having an upper inlet opening and a lower outlet opening in its peripheral portion, a rotary valve member within the casing and having peripheral longitudinally extending. can receivmg pockets, the rotary the rings, said rings and strips reventing valve member also having circumferential grooves between the ends of the pockets and the ends of the valve and longitudinal grooves between the pockets and the circumferential grooves, split packing rings positioned in the circumferential grooves and .yieldingly bearing against the inner periph-- ery of the casing, and two-part yieldingly elongatable bearing stri s positioned in the longitudinal grooves an yieldingly bearing against the inner periphery of the casing and against the split bearing springs.

- 5. A valve for a cooker, comprising a drum having an inletopening, a valve ,c-asing covering said opening and having an inlet opening and a discharge opening in register with the drum inlet opening, a rotary valve member within the casing and having can receiving pockets which move into register with the casing openings, packing rings extending around the valve member between the pockets and the. ends of the valves, and yieldingly elongatable packing stripspositioned between the pockets and extending to the escape of heat fluid from the rum opening While the valve member is turning.

6. A valve for a cooker, comprising a'drum having an upper inlet opening and a lower discharge opening, valve casings havin openings and mounted on the drum aroun the drum openings, rotary valve members within the casing and having longitudinally extending can receiving pockets which move into register with the openings, packing rings extending around the valve members between the pockets and the ends of the valve members, yieldingly elongatable packing strips positioned between the pockets and the ends of the valve members, said rings and strips preventing the escape of heat fluid from the drum openin s while the valve members are turning, and means for turning the valves.

2'. A valve for a cooker, comprising acir cular casing having an inlet and an outlet opening in itsperipher'al portion, a rotary member within the casing and having peripheral longitudinally extending can receiving pockets, said rotary memher also having circumferential ooves between the on s of the pockets an the ends of the valve member and longitudinal grooves between the pockets and the circumferential grooves, split packing rings positioned in the circumferential grooves, springs for yieldin ly holding the ring against the inner peripi ery of the casing, two-part overlapping packing strips positioned in the longitudinal grooves, spr ngs for yieldingly holding thestrips against the inner periphery of the casing, other springs for yieldingly holding the ends of the stri s against the inner side portions of the pac ing rings, and means for rotating the valve member.

8. A valve for a cooker, comprisinga circular casing havin an inlet and an outlet opening in its peripheral portion, a rotary member within the casing and having peripheral longitudinallyextending can reoeiving pockets, said rotary member also having circumferential grooves between the ends of the pockets and the ends of the valve member and longitudinal grooves between the pockets and the circumferential grooves, split packing rings positioned in the circumferential grooves, springs for yieldingly holding the ring against the inner periphery of: the casing, two-part overlapping packing strips positioned in the longitudinal grooves, springs for 'yieldingly holding the strips against the inner periphery of the casin other springs for yieldingly holding the on s of the strip? against the inner side portions of the pac n rings, means for preventing relative latera movement of the two portions of the bearing strips, the valve member.

9. A valve for a cooker, compris ng a urand means for rotating cular casing having an inlet and an outlet f opening in its peripheral portion, a rotary member within the casing and having peripheral longitudinally extending can receiving pockets, said rotary member also having 'the ring against the inner periphery of the casing, two-part overlapping packing strips positioned in the longitudinal grooves, springs for yieldingly holding the strips against the inner periphery of the casing, other springs for yieldingly holding the em s of the strips against the inner side portions of the packing rings, the adj acent inner side parts of the two-part strips having registering grooves, key pin within the grooves for holding the parts in alinement while permitting their free endwise movement, and means for rotating the valve inernhaar'a 10. A valve for a cooker, comprising a circular casing having an inlet and an outlet opening in its peripheral portion, a rotary member within the casing and having peripheral longitudinally extending can receiving pockets, said rotary member also having cirv grooves, springs for yieldingly holding the. packing stri s'dis osed betweenthesuccessive ring against the inner perip cry of the cas-, pockets an yiel ingly enga 'ng both said ing, two-part packing strips positioned in the casing and the adjacent sides send packings. longitudinal grooves, said strip parts being In testimony whereof I aflix my s1 'ature.

5 of L-sha e and overlapping each other side? FRANK D. CHAP 7 wise and end-wise an each part engaging a the inner periphery of the casing on opposite sides of t e can opening, springs for yieldingly holdiig the strips against the inner peri hery o the casing, other springs for 75 yieldingl holding the ends of. the stri s against t inner side portions of the pac ing rings, means for preventing relative lateral movement of the parts of the two-part strips, and means for rotating the valve mem her.

11. A- valve for a continuous cooker comprising a casing for attachment to a cooker drum and having an inlet opening and an outlet opening, a rotary valve member within as the casing and having can receiving pockets which register with the openings when the valve is rotated, packing extending around the valve members between the pockets and the end of the valve, and yieldingly elongat- 90 able packing strips positioned between the pockets and coactmg with a side of the other packing.

12. A valve for a cooker, comprising a casing having inlet and outlet openings, a

valve rotatable within said casing and having conveying pockets registerable with said openings during rotation of said valve, said valve also having a peripheral groove inter mediate its end and said pockets, a packing within said groove and cooperating with said Y casing, and yieldingly elongatable packing strips disposed between the successive pockets and yieldingly engaging both said casing and said packing.

13. A valve for a cooker, comprising a bored casing having inlet and outlet openings communicating with the bore thereof, an annular valve rotatable within said casing and having conveyingpockets registerable with said openings during rotation of said valve, said valve also having a peripheral groove intermediate its end and said pockets, a ring packing within said groove and yieldingly elongata 1e packing strips disposed between the successive pockets and yieldingly engaging both said casing and a side of said packing.

14'. A valve for a cooker, comprising a bored casing having inlet and outlet o enings communicating with the bore thereo an annular valve rotatable within said casing and having conveying pockets registerable with said openings during rotation of said 125 valve, said valve also having auperipheral groove intermediate each of its ends and said pockets, a resilient ring packing within each of said grooves yieldingly engaging the bore of said casing, and yieldingly elongatable a engagin said casing bore, and yieldingly 

